JPS5894826A - Vacuum cleaner floor suction device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floor suction device for a vacuum cleaner having a built-in rotating brush device, and is aimed at improving dust collection efficiency.

In a conventional vacuum cleaner floor suction device incorporating a rotating brush device, an opening for a circular dust transport path is provided inside a suction port that accommodates a rotating brush. However, the rotating brush and the shape of the suction port release dust from the rotating airflow generated by the rotating brush, and prevent the dust that has been thrown up by the rotating brush and crashed into the wall inside the suction port from falling to the floor. It has been impossible to accommodate all of the dust within the dust transport path by using an airflow flowing into the opening in parallel with the rotating brush.

The present invention eliminates the above-mentioned conventional drawbacks, and one embodiment thereof will be described below.

In the figure, 1 is a vacuum cleaner, a hose 2 is attached to the tip, an extension pipe 3 is connected to the hose 2, and the extension pipe 3 is connected to a nozzle support 9 disposed on a floor suction device 4.
Use by connecting to. The floor suction device 4 is composed of an electric motor 6, a rotating brush 6 driven by the electric motor 6 via a belt 7, and a dust conveyance path 8 that carries the dust stirred up by the rotating brush 6. . 10 is a power cord, 11 is a back plate, and 12 is a roller. Reference numeral 13 denotes a suction port that accommodates the rotating brush 6 and is connected to a dust conveying path opening 14 that extends parallel to the rotating brush 6 and is connected to the dust conveying path 8 . This dust transport path opening 14 is provided near a position where the bristles of the rotating brush 6 are separated from the surface to be cleaned. Further, the inclined surface 16 is designed to allow dust to easily enter.

In the above configuration, the first,
The dust A caught up by the rotation of the rotating brush 6 receives dust suction in a direction that assists the centrifugal force due to the rotation, and is easily released from the inertial rotational movement, and the dust B thrown up by the rotating brush 6 The dust C that has flown into the dust transport path opening 14 or has flown to the upper layer inside the suction port 13 is also likely to be sucked into the dust transport path opening 14 during its fall. In addition, all the dust carried into the suction port 13 passes just in front of the dust transport path opening 14, and the degree to which it is sucked into the dust transport path 8 becomes extremely high.

Further, since the dust conveyance path opening 14 extends parallel to the rotating brush 6, the inside of the suction port 13 is suctioned in a nearly uniform state, and the dust collection efficiency is improved. In addition, when the dust conveyance path opening 14 is provided downward and the inclined direction 16 is provided as shown in FIG. 2, dust is easily drawn in by the rotating brush 6, and the dust collection effect is high.

As described above, according to the present invention, the degree of utilization of the rotating brush is greatly increased, and the efficiency of dust collection, which is the original function of a vacuum cleaner, is also significantly improved. Note that the above is just an example, and it is obvious that the configuration is not limited to this.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention with a floor suction device connected to it, Fig. 2 is a sectional view of the same floor suction device, and Fig. 3 is a vacuum cleaner with the back plate removed. It is a bottom view of the floor suction device in a state. 5... Electric motor, 6... Rotating brush, 8
...Dust conveyance path, 13...Suction port, 1
4...Dust conveyance path entrance.

Claims (1)

[Claims] This floor suction device for a vacuum cleaner has a dust conveyance path opening parallel to the rotating brush and in the vicinity of the position where the bristles of the rotating brush are separated from the surface to be cleaned, in the suction port housing the rotating brush.